<html>
    <body>
        <canvas id="canvas" width="400" height="640">
        <!-- <canvas id="canvas" width="240" height="320"> -->
            not support webgl   
        </canvas>
        <!-- <img src = "./image.png"></img> -->
    </body>
    
    <script src="./drawFrameBuffer.js"></script>
    

</html>
